Power transmitting apparatus having NFC tag detection function, control methods therefor, and storage medium

Abstract

A power receiving apparatus that wirelessly receives power from a power transmitting apparatus comprises a first communication unit communicating with the power transmitting apparatus, a second control unit executing detection of another apparatus capable of performing short-range wireless communication and a first control unit controlling whether to execute the detection by the second control unit. The first control unit, in a case where it is determined that the power transmitting apparatus does not have the detection function, controls to execute the detection by the second control unit when a detection status of another apparatus by the second control unit is undetermined, and not to execute the detection by the second control unit when the detection status is determined. The first communication unit transmits, to the power transmitting apparatus, a signal corresponding to a result of the detection by the second control unit.

The invention claimed is: 
     
       1. A power transmitting apparatus, comprising:
 a power transmitting unit configured to wirelessly transmit power; 
 a detection unit configured to execute detection processing for detecting an NFC tag for performing Near Field Communication (NFC), by a polling of NFC; 
 a receiving unit configured to receive a request for information on the power transmitting apparatus from a power receiving apparatus; and 
 a sending unit configured to send, to the power receiving apparatus, information representing that the detection processing is supported by the power transmitting apparatus, information representing that the detection processing has not been executed by the power transmitting apparatus and information representing that no NFC tag is detected, after receiving the request, when the detection processing is supported by the power transmitting apparatus and the detection processing has not been executed. 
 
     
     
       2. The power transmitting apparatus according to  claim 1 , wherein the information representing that the detection processing is supported by the power transmitting apparatus, the information representing that the detection processing has not been executed by the power transmitting apparatus and the information representing that no NFC tag is detected are sent in a negotiation phase in which a negotiation regarding wireless power transmission is performed. 
     
     
       3. The power transmitting apparatus according to  claim 1 , wherein the receiving unit receives, from a power receiving apparatus, a request to limit transmission power after the sending unit sends, to the power receiving apparatus, information representing that the detection processing is supported by the power transmitting apparatus, information representing that the detection process has been executed by the power transmitting apparatus and information representing that an NFC tag is detected. 
     
     
       4. A communication method for a power transmitting apparatus that wirelessly transmits power, the method comprising:
 executing detection processing for detecting an NFC tag for performing Near Field Communication (NFC), by a polling of NFC; 
 receiving a request for information on the power transmitting apparatus from a power receiving apparatus; and 
 sending, to the power receiving apparatus, information representing that the detection processing is supported by the power transmitting apparatus, information representing that the detection processing has not been executed by the power transmitting apparatus and information representing that no NFC tag is detected, after receiving the request, when the detection processing is supported by the power transmitting apparatus and the detection processing has not been executed. 
 
     
     
       5. The communication method according to  claim 4 , wherein the information representing that the detection processing is supported by the power transmitting apparatus, the information representing that the detection processing has not been executed by the power transmitting apparatus and the information representing that no NFC tag is detected are sent in a negotiation phase in which a negotiation regarding wireless power transmission is performed. 
     
     
       6. The communication method according to  claim 4 , further comprising receiving, form a power receiving apparatus, a request to limit transmission power after information representing that the detection processing is supported by the power transmitting apparatus, information representing that the detection process has been executed by the power transmitting apparatus and information representing that an NFC tag is detected are sent to the power receiving apparatus. 
     
     
       7. A non-transitory computer-readable storage medium storing a program for causing a computer to execute a communication method for a power transmitting apparatus that wirelessly transmits power, the method comprising:
 executing detection processing for detecting an NFC tag for performing Near Field Communication (NFC), by a polling of NFC; 
 receiving a request for information on the power transmitting apparatus from a power receiving apparatus; and 
 sending, to the power receiving apparatus, information representing that the detection processing is supported by the power transmitting apparatus, information representing that the detection processing has not been executed by the power transmitting apparatus and information representing that no NFC tag is detected, after receiving the request, when the detection processing is supported by the power transmitting apparatus and the detection processing has not been executed.